package string;
//获取字符串长度
public class LengthDemo {
    public static void main(String[] args) {
        String str = "我爱Java";
        int len = str.length();
        System.out.println(len);
//        String str = "我爱java";
//        int len = str.length();
//        System.out.println(len);
    }
}
